The Shimano GRX RX820 12-Speed Rear Derailleur delivers quiet stable shifting as we ride over mixed-terrain on our 12-speed GRX gravel drivetrain. Shimano’s Quiet and Secure technology creates a low-profile design reduces chain slap and improves chain retention while the ON/OFF stabilizer switch matches the terrain for optimal performance.
Price: $126.99 from Backcountry
| Merchant | Price | |
|---|---|---|
| $126.99 | Visit Store |
For fast reliable shifting during our mixed-terrain riding adventures Shimano brings us the new GRX RD-RX825 12-Speed Di2 Rear Derailleur complete with a built-in wireless connectivity unit and charging port for easy operation and recharging. SHIMANO...
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Shimano's refinements of the latest Dura-Ace Di2 group impress upon us the brand's need for speed reliability and performance. This is the group where Ultegra receives trickle-down technology from and what we would categorize as top-tier. In particular...